Wool-washing machine



(No Model.)

P. G. & A. C. SARGENT.

WOOL WASHING MACHINE.

No. 411,533. 4 Patented Sept. 24, 1889.

W??? Mag ar #7 N. PLIERS. Pholo-lfllmgmphur, Washmglcn. o. c.

UNITED STATES PATENT @EEICE.

FREDERICK G. SARGENT AND ALLAN C. SARGENT, OF GRANITEVILLE, MASSACHUSETTS.

WOOL-WASHING MACHINE.

SPECIFICATION forming part of Letters Patent No. 411,533, dated September 24, 1889.

Serial No. 224,648. (No model.)

To all whom it may concern.-

Be it known that we, FREDERICK G. SAR- GENT and ALLAN C. SARGENT, of Granite- Ville, in the county of Middlesex and State of Massachusetts, have invented a new and useful Improvement in ool-Washing Machines, of which the following is a specification.

Our invention relates to wool-washing machines; and it consists in certain new and useful constructions and combinations of the squeeze-roll mechanism of the same, substan tially as hereinafter described and claimed.

In the drawings, Figure l is a side elevation of a portion of a wool-washing machine with the squeeze-rolls and mechanism for compressing the same constructed according to our invention. Fig. 2 is an end elevation of the same. Fig. 3 isa detail drawing of a portion of the machine shown in Fig. 1.

F is the casing and bowl of the machine, upon which the squeeze-rolls R R are mounted in the usual manner in bearings sliding up and down in the slot 0' in each side of the machine. These feed-rolls are either both covered with an outer jacket of elastic and absorbent materialsuch as felt or yarn around their circumferenceor one of them is provided with such elastic and absorbent jacket and the other with a non-absorbent jacket of india-rubber or similar elastic material. The function of the absorbent felt or yarn jacket is to take up the moisture out of the wool passed through between the squeezerolls and not thoroughly removed by the compression between them and so dry the fiber more completely. The jackets r and 7" around the rolls have their ends shown in Figs. 1 and 2 and completely surround the peripheries thereof. Each of the upper squeeze-rolls R has its boxes held down on their upper sides by the levers L L, pivoted at Z and provided with projections Z resting on top of the boxes. To the outer ends of these levers the rod Z and weighted levers Z are connected to produce the compression upon the squeeze-rolls.

I-leretofore it has been customary to allow the full pressure of the weighted levers to come upon the feed-rolls, whether a greater or less mass or quantity of wool was passing between the same, with the effect that the absorbent elastic covering 4' or r of one or both rolls, as the case might be, was compressed harder when a less quantity of wool in bulk was passing between the nip of the rolls. This hard squeezing of the absorbent jacket of the roll impaired its absorbent qualities and prevented it from taking up the moisture out of the wool equally well when a greater or less amount of the latter was passing through between the rolls. To avoid this difficulty we attach to the casing of the machine brackets b 1), formed box-shaped at their outer ends, so as to receive a block of india-rubber I) in them. To each of the levers L, over the block of rubber b, we attach a bearing foot b which rests upon the upper side of the rubber block. Through the bracket Z) and into the boxportion of the same we adjust a screw and handwheel b the upper end of which presses upon the plate of metal b underneath the rubber block b. By these means we are enabled to so adjust the rubber block b that when a less amount of wool passes through between the feed-rolls it shall counteract the pressure of the weighted levers L more and more as the amount of wool becomes less and less, and thereby produce an even pressure upon the fiber and prevent.- the absorbent j aeket of the squeeze-roll R or R, or both of them, from being so compressed as to prevent its absorbing the moisture out of the wool which is pressed against it, as before described. \Ve thus obtain a more even and better result in the removal of the moisture from the washed wool by the squeeze-rolls and prevent the tearing and injury of the absorbent jacket of them by excessive compression thereon produced by placing sufficient weight upon the levers L to properly compress a large amount of wool between the rollers, which weightbecomes excessive when comparatively small amounts pass through between them,

WVe do not claim, broadly, the combination of a pair of rolls, pressure devices, a pair of standards, movable parts in said standards transmitting pressure toward said rolls, and a stop applied in the path of some movable part transmitting pressure from each pressure device toward said rolls and their journals'; but

What We claim as new and of our invention 1. The combination of the squeeze-rolls R R of the Wool-washing machine, one of Which is provided with an elastic absorbent jacket of felt, yarn, or similar material, the Weighted levers L L, adapted to compress the said rolls together, and the elastic stop-blocks b 1), adapted to gradually counteract the pressure of the Weighted levers L L as the squeezerolls approach each other, substantially as described.

2. The combination of the squeeze-rolls R R of the Wool-Washing machine, one of which is provided with an elastic absorbent jacket of felt, yarn, or similar material, the weighted levers L L, adapted to compress the said rolls together, the elastic stop-blocks b 1), adapted to gradually counteract the pressure of the Weighted levers L L as the squeeze-rolls approach each other, and the hand-wheel and the adjusting screw and plate 19 b adapted to vary the position of said stop-blocks, substantially as described.

FREDERICK G. SARGENT. ALLAN 0. SARGENT. Vitnesses:

J. B. OURRIER, DAVID HALL RICE. 

